Merge pull request #3685 from OZhurbenko/whiteboard-restructuring

bigbluebutton-html5/imports/locales/en.json

...luebutton-html5/imports/ui/components/media/container.jsx

...ebutton-html5/imports/ui/components/polling/component.jsx

...on-html5/imports/ui/components/presentation/component.jsx

...on-html5/imports/ui/components/presentation/container.jsx

...5/imports/ui/components/presentation/cursor/component.jsx

.../ui/components/presentation/default-content/component.jsx

...ts/ui/components/presentation/default-content/styles.scss

...omponents/presentation/presentation-toolbar/component.jsx

...omponents/presentation/presentation-toolbar/container.jsx

...i/components/presentation/presentation-toolbar/service.js

.../components/presentation/presentation-toolbar/styles.scss

...utton-html5/imports/ui/components/presentation/service.js

...l5/imports/ui/components/presentation/slide/component.jsx

...tton-html5/imports/ui/components/presentation/styles.scss

...mports/ui/components/whiteboard/shape-group/component.jsx

...mports/ui/components/whiteboard/shape-group/container.jsx

...5/imports/ui/components/whiteboard/shape-group/service.js

...ui/components/whiteboard/whiteboard-overlay/component.jsx

...ui/components/whiteboard/whiteboard-toolbar/component.jsx